Our favourite addition to the back yard this summer has to be our new VW Van Tent from Monster Factory. Not only does it pack up into a compact spare tire bag for travel but it is also easy to assemble. You can use it outside as a shade structure, inside for play time, or fill with pillows and use as a sweet little reading nook. My parents actually had this exact VW Van when I was born!
I highly recommend watching this video on their site to ensure that you put it away properly. It doesn't twist as you'd expect and you can damage the frame if you try to with force.